Never buy a RedRhino. Multiple design flaws - a most basic example: no fuel bubble/needle on them (ridiculous). Another example... Vertical jaw aperture facing the shaker deck...so constant jam ups. Ultimately, the 15tn an hour is a massive exaggeration. If you run at max opening, with two man operation - one feeding, and one standing at the hopper to ensure material hits jaws in good order... Realistically, expect 4-6tn per hour